Miles To Go Before I Sleep

You are right and you should say it.

I am very attached to the Todoroki/Midoriya fight because it's nothing short of insane.

It starts with Todoroki (accidentally?) eavesdropping Uraraka and Tenya mentioning that Izuku is eating with All Might. Similar quirk + Midoriya risking his life to save All Might (someone who shouldn't need help) and so he immediately put on the tinfoil hat.

Just before the Sport Festival starts, Todoroki challenged Midoriya, someone who can't use his quirk without breaking his bones, instead of Bakugou, aka the other strongest fighter in the class.

And Todoroki turns out to be right because the sheer possibility of Izuku using his quirk too close to him during the "Grab a headband" fight made him use his flames for a moment, which is a pretty big deal.

Todoroki then lures Izuku to an isolated area, it's the first time they actually talk to each other for real, and Todoroki proceeds to ask him if he is the Symbol of Peace's secret bastard child???

He then doesn't even give a second to Izuku to recover from it and tells this kid, that he has pretty much never talked with before, his entire tragic backstory.

As someone who protects their secret more fiercely than a dragon protects their gold, this one shook me more than the actual content of the tragic backstory. There is also the fact that it was a huge risk on Todoroki's part as it was possible for whoever listened to him not to believe him.

Izuku then sees Endeavor. I am not surprised about him talking back to him because Izuku has social anxiety but doesn't have much patience when it's more serious. And yes, from his expression, it's pretty clear he believed Todoroki.

Izuku goes to this fight mentally prepared to snap as many fingers as necessary to win. He doesn't have any other way to fight Todoroki.

Not only does he break many bones in this fight but he pretty much tells Todoroki "You ain't shit" because Todoroki never managed to hit Midoriya. All his damage is self inflicted so far.

At some point, Todoroki wonders if his dad has paid Midoriya to convince him to use his fire, which is very funny to me.

Izuku actually directly punches Izuku with OFA at some point, which is a pretty good deal as at the time, he avoided it in order not to turn his opponents in chunky salsa.

"IT'S YOUR POWER!"

Enough said.

Once the flames were unleashed, they both decided to just unleash their full power on each other.

That something they didn't even do in the USJ, while fighting villains.

You said that an overworked Cementos is the reason why they didn't killed everyone by the virtue of thermodynamic but since the walls were created were vaporized, I am more leaning towards their attacks cancelling each other.

And don't forget how they didn't really talk to each other during this fight, and yet, they quickly understood what the other was trying to say and why they were doing this.

No, seriously, they shared a glance to say "Hey, want to beat the crap out of each other to evacuate some trauma?", the other mentally answered "Yes!" and the next thing Midnight knew, there was no more arena.

The Science behind Erasure

-it's actually ingenious!!

SO recently I wondered....if Aizawa does hero work after hours...does that mean he also has increased night vision?? Because it wouldn't makes sense for a hero who relies on his eyes to work at a time when he can't see....right?

(this led me on a scientific deep dive because I am a huge nerd.)

As we know, Aizawa's eyes light up (red) when he activates his quirk. It just so happens, red doesn't glare like other colors of light do. This means red light makes night vision easier. Why? Because your pupils don't need to re-adjust between the light source & the dark around you! This reduces eye strain & keeps your field of vision clear & consistent at night, while still illuminating your path!

Simultaneously, red light is difficult to see at a distance so it'll help keep your position safe from possible attackers. This is why military flash lights are usually red!

So YES!... Aizawa's quirk can improve his night vision... By acting like a red flashlight! But that's not all!

Then I started thinking of HOW his quirk works...He stares at someone, his eyes glow red, his hair floats...and somehow the enemy's power stops working??

As we know, Erasure deactivates the enemy's quirk gene. This happens when Aizawa glares at them. But HOW can he deactivate a gene by only seeing the outside of the body? Especially since Erasure doesn't erase physical mutations??

Turns out, red light has a longer wave length than other colors, allowing it to penetrate the body more easily! In fact red & Infrared light (invisible to humans) is often used in medical imaging to detect things like veins and blood vessels beneath the skin.

Simply put Aizawa's quirk penetrates the body kind of like an x-ray. The reason we can see his eyes light up, and NOT the target being illuminated( like the picture on the left below)?? It's because he likely also emits red light that crosses over into infrared spectrum. So the red light that actually enters the body is invisible to the naked eye.

However real x-rays fall on the opposite side of the light spectrum under Ultra violet light. They not only enter but pass through their target, So to be clear Aizawa probably does not have x-ray vision. You may have also heard of Infrared in terms of night vision goggles. Aizawa likely does not have thermal/night vision either. His eyes only EMIT visible red light which allows him to see better in the dark & Infrared which enters the body.

So while Aizawa's glowing red eyes may at first seem like a meaningless, but cool, feature of his quirk, it's really the tell into how erasure works!

However, glowing red eyes only tell us how aizawa's quirk REACHES the gene, not how he switches it off! So how does he do it?? With an electromagnetic field! The light spectrum is a small part of the larger electromagnetic spectrum & the only part of it visible to the human eye!

So, how do y'all know I'm not just making this up?

Because his hair floats!

What's the most familiar electromagnetic force humans encounter on a daily basis?--- STATIC ELECTRICITY! When aizawa switches on his quirk he essentially becomes a cat being rubbed with a balloon! The carbon nanofibers in his capture weapon conduct static electricity so that floats too!

Aizawa's Erasure works by emitting an electromagnetic field, which like the infrared light, penetrates the body of his target! Now that we know how his quirk reaches the inside of the body, the question is how does it disrupt the quirk function?

As it turns out, electricity can be fired at DNA to switch Genes on and off in real life! So Erasure specifically targets the quirk gene and immobilizes it temporarily with electricity!!!! That's crazy!!!

Since we know Aizawa can't erase the quirks of heteromorphic types it's safe to assume it's because physical mutations effect more than one gene & Erasure specifically targets a single quirk gene.

If Erasure got into the hands of AFO it could easily mean the end of the world, or any one who apposes AFO for that matter. Sure AFO could use Erasure as Aizawa does, but he could also scientifically manipulate it to target genes OTHER than the quirk gene. Meaning he could kill you, or even make your body fall apart, with just a look.

@akseedragon713

Okay, this is a really good question!

The answer?? It might not change anything!

A possible explanation for his eyes glowing yellow, instead of red? Typically, human eyes are only red when there is no pigmentation. Like in albino people! Aizawa's eyes are normally black, so even if light were passing through them, they still wouldn't lose all their pigmentation when glowing. What happens to dark eyes in the sun? They turn a gold color!

Brown & black have more red than other eye colors. This means a visible red glow would be canceled out by the red in his eye color. Orange & yellow are next on the color spectrum, so it makes sense for his eyes to glow an adjacent color with the least red in it, which is yellow!

it could be decades later and you’re minding your own business in line at the grocery store or on the bus or trying to fall asleep and from the depths of your brain comes “the bunny, the bunny, ooh I love the bunny”

my goblin brain:

it could be decades later and you’re minding your own business in line at the grocery store or on the bus or trying to fall asleep and from the depths of your brain comes “the bunny, the bunny, ooh I love the bunny”

my goblin brain:

So we come to Izuku’s burning question to All Might on that rooftop after the slime villain: “can a person become a hero without a quirk?”. All Might said no. He had reasons for saying no other than simple bigotry - but the fact of the matter was, the #1 Hero said no. He changed his mind about Izuku later, but even then, he offered Izuku his quirk right after saying he could be a hero. So you can argue he didn’t actually negate his comment on the rooftop. The anime (and presumably the manga, but I’ve only watched the anime) then changes lens to the insane lengths Izuku goes to master his inherited quirk(s). Given the drawbacks such that he seemed better off NOT using it (exhibit A: first & 2nd rounds of the sports festival) in the early seasons, I’m probably not the only one who wondered whether Izuku might have been better off without OFA. Maybe then he’d have learned to fight smarter rather than try to be a carbon copy of All Might. (Izuku-kun, you are an inspiration for working so hard for your dream and the legacy entrusted to you, but please stop breaking your body). Like, Izuku eventually learns to fight both smarter as well as harder; but like that saying goes - when you when you’ve been given a hammer, all your problems start to look like nails. And bad habits are hard to break. Wish Izuku would have learned that lesson from the start.

And who do we know that HAD to have fought smarter not harder because he didn’t have a combat oriented quirk? It was established that Aizawa himself got into the hero course @ UA through the Sports Festival because his quirk was no good for the entrance exam. As a lot of fanfics have noted, Aizawa essentially fights quirkless. So can’t blame us for wondering if Eraserhead would’ve given a different answer on that rooftop. And because Izuku deserves all the good things, it’s only a small leap from there ( only rational) to have dadzawa thrown in the mix. I agree that these fics could do without the gratuitous All Might-bashing though.